Jojo if you are making them, can you post how you do it? I have alot of poeple ask me how to do it. P.S. if you are in the madison wi area, I have some nice zoo's and sps I can give you. Sorry to hear about your tank man. Kent makes a nice metal sponge that will suck all the copper right out. Sorry I only read part of your post the thread jumped on me.